*vc-diff*.diff

diff --git a/go/billing/tasks.py b/go/billing/tasks.py
index ec2b0e8..dc7ad13 100644
--- a/go/billing/tasks.py
+++ b/go/billing/tasks.py
@@ -271,7 +271,7 @@ def archive_transactions(account_id, from_date, to_date, delete=True):
             "to": to_date,
         })
 
-    transaction_list = Transaction.objects.filter(
+    transaction_query = Transaction.objects.filter(
         account_number=account.account_number,
         created__gte=from_date,
         created__lt=(to_date + relativedelta(days=1)))
@@ -289,7 +289,7 @@ def archive_transactions(account_id, from_date, to_date, delete=True):
             yield sep
 
     bucket = Bucket('billing.archive')
-    chunks = generate_chunks(transaction_list)
+    chunks = generate_chunks(transaction_query.iterator())
 
     archive = TransactionArchive(
         account=account, filename=filename,
@@ -305,7 +305,7 @@ def archive_transactions(account_id, from_date, to_date, delete=True):
     archive.save()
 
     if delete:
-        transaction_list.delete()
+        transaction_query.delete()
         archive.status = TransactionArchive.STATUS_ARCHIVE_COMPLETED
         archive.save()